IT IS WORTH READING THIS AS IT ACTUALLY WORKS!!
I am aware that this question was posted a year ago but anyone else who is reading this and has the problem of spots of bum then I really want to help you as I suffered from this problem for years and now I have a clear smooth bottom!
Firstly I know it is embarrising but you have to go to your doctor and explain the problem as this is what I did and he put me on a course of anti-biotics specifically for infected folicals which is what the condition is. The spots cleared up in 2 weeks!
Secondly, compliment this treatment with using sudecream or supermarkets own brand after showering or bathing daily. I have continued to use sudacream everyday now for 5 years and they have only ever come back if I stop using the cream, so it is now a perminent product in my beauty routine. I have not tried the supermarkets own brands of this product (zinc cream) but I'm sure they are just as good.
Would be interested to hear if anyone finds this helpful.